21895809

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{2273}}^1$

素因数の和:2321

約数の個数: 24

約数和(自身を含む): 33291360

約数和(自身を除く): 11395551

約数列:

[1, 3, 13, 19, 39, 57, 169, 247, 507, 741, 2273, 3211, 6819, 9633, 29549, 43187, 88647, 129561, 384137, 561431, 1152411, 1684293, 7298603, 21895809]

約数ペア:

[(1, 21895809), (3, 7298603), (13, 1684293), (19, 1152411), (39, 561431), (57, 384137), (169, 129561), (247, 88647), (507, 43187), (741, 29549), (2273, 9633), (3211, 6819)]